<template>
  <div class="todo-header">
		<input type="text" placeholder="请输入你的任务名称，按回车键确认" v-model="title" @keyup.enter="add"/>
	</div>
</template>

<script>
import {nanoid} from 'nanoid'
export default {
    name:'MyHeader',
	props:['reveice'],
	data() {
		return {
			title:''
		}
	},
	methods:{
		add(e){
			//校验是否没有写信息
			if(!this.title.trim())
			return alert("传入的值不能为空")
			//将添加的信息封装成对象
			const it = {id:nanoid(),name:this.title,done:false}
			//利用app穿的函数将封装的对象传过去
			this.reveice(it)
			//最后数据清空
			this.title = ''
		}
	}
}
</script>

<style scoped>
/*header*/
	.todo-header input {
		width: 560px;
		height: 28px;
		font-size: 14px;
		border: 1px solid #ccc;
		border-radius: 4px;
		padding: 4px 7px;
	}

	.todo-header input:focus {
		outline: none;
		border-color: rgba(82, 168, 236, 0.8);
		box-shadow: inset 0 1px 1px rgba(0, 0, 0, 0.075), 0 0 8px rgba(82, 168, 236, 0.6);
	}
</style>